According to a recent study by researchers from the University of Tartu, spring boat maintenance activities, particularly the sanding and repainting of vessels, have been found to substantially increase the toxicity levels in harbor soil. The volatile dust generated from these maintenance efforts can make the sea floor more than twice as toxic. Although the study revealed that the impact of heavy metals was milder than anticipated, it was confirmed that the paint dust adversely affects fish olfactory senses, which can have further implications for marine life and ecosystems.

Every spring, thousands of boat owners across Estonia undertake maintenance in their area ports, often rejuvenating their vessels with new coats of paint after cleaning the hulls. Among those actively participating in this tradition is Randel Kreitsberg, an associate professor of ecotoxicology at Tartu University, who humorously reflects on the irony of his experiences as a recreational boater. Kreitsberg recalls purchasing toxic paint in the past without understanding the long-term implications of such practices on marine environments.

Over the years of owning a boat, Kreitsberg has come to recognize the environmental cost associated with common boat maintenance procedures. His insights underscore a broader need for awareness around the consequences of seemingly benign activities, signaling a necessity for the development of safer alternatives in boat maintenance practices that protect both marine health and the interests of boat owners.